Match each chemical reaction with the correct identifying type. 2 NaHCO3 (S )→ Na2CO3 (s) + H2O (g) + CO2 (g)

2 C8H18 (l) + 9 O2 (g) → 16 CO2 (g) + 18 H2O (g)

3 H2 (g) + N2 (g) → 2 NH3 (g)

Cu (s) + Ag2SO4 (aq) → 2 Ag (s) + CuSO4 (aq)

Pb(NO3)2 (aq) + 2 KI (aq) → PbI2 (s) + 2 KNO3 (aq)

Double Replacement Single Replacement Synthesis/Composition Decomposition Combustion

The human activities in two locations are described below: location a: rampant use of plastic containers location b: excessive use of pesticides and fertilizers which statement is most likely true? location a will have poor air quality because plastic is biodegradable. location a will experience water scarcity because plastic absorbs moisture. the population of honeybees will increase in location b because production of crops will increase. the population of fish in location b will decrease because the water is contaminated.

15. which of the following is not human-caused groundwater pollution? a. water in an aquifer dissolves elements such as arsenic and mercury from surrounding rock. b. water in an aquifer is contaminated by leachate that seeps into the ground from a landfill. c. water in an aquifer becomes polluted with chemicals used in hydraulic fracturing, or fracking. d. water in an aquifer absorbs harmful bacteria from the drainage field of a septic tank.

Which one of the following substances would be the most soluble in ccl4? na2so4 h2o ch3ch2ch2ch2oh c4h10 hi